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- Wind & solar
- In development
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- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- In development
- Under construction
- Operating
Marshall (MI): location and 5 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Marshall (MI)
Power plant · Gas, reciprocating engine
Key facts
Power plant · Gas, reciprocating engineran 1% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1928
- Net generation, 2025
- 638 MWh
- Grid
- 12 kV, 4 kV to City of Marshall - (MI) (MISO)
- Location
- Calhoun County, Michigan
- Operated by
- City of Marshall - (MI)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Output
- Gas
- Oil
Details
Who’s behind it
No companies named in filings yet.
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- Technology
- Gas, reciprocating engine source: “Natural Gas Internal Combustion Engine”
- Age
- 98 years since 1928
- Unused energy
- 85 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 14,434 Btu/kWh 2025
All 5 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Fuel burned (MMBtu), 2025 | 9,209 |
| Capacity factor, 2025 | 0.007 |
| Heat rate (Btu/kWh), 2025 | 14,434.2 |
| Net generation (MWh), 2025 | 638 |
| Balancing authority code | MISO |
Retirement
EIA-860M September 2026StatusSome generators have retired; the rest of the plant is still in service. As of EIA-860M for September 2026.- Capacity retired
- 2.1 MW
- Generators retired
- 2
- Capacity still in service
- 9.8 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| IC2 | Natural Gas Internal Combustion Engine | 1.1 MW | Retired | May 2015 |
| IC4 | Petroleum Liquids | 1 MW | Retired | May 2015 |
By technology
| Technology | Retired | Scheduled to retire |
|---|---|---|
| Natural Gas Internal Combustion Engine | 1.1 MW | |
| Petroleum Liquids | 1 MW |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 12 kV, 4 kV
- Transmission or distribution system owner
- City of Marshall - (MI)
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- RFC
Transmission lines within 15 mi (10)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Timeline
- Stated Units IC2, IC4 scheduled to retire, 2.1 MW · EIA-860M
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory
Sources
- EIA-860M
- LBNLYin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| MEC South Filed | Gas, combined cycle | 2.6 mi | 500 |
| MEC North Permitted | Gas, combined cycle | 2.9 mi | 500 |
| Sunfish Solar 2 Under construction | Solar | 3.7 mi | 360 |
| Hecate Energy Sunfish Solar LLC Filed | Solar | 7.9 mi | 499 |
| Jackson County Solar, LLC Under construction | Solar | 14.6 mi | 125 |
Sources EIA-860M